iPhone hotspot drops when phone locks: every fix that actually works

You’re on a video call. You set the iPhone face-down so the screen times out. Eight seconds later your laptop says “Wi-Fi has no internet” and your meeting freezes.

This is the most reported Personal Hotspot issue on the entire Apple Discussions site. People have been chasing it since iOS 13. The fixes that surface in every thread are mostly settings tweaks that, at best, delay the drop. None of them actually solve it.

Here’s what people try, ranked by how often they show up in forum threads, and the honest answer for each.

Why does my iPhone hotspot drop the second I lock the screen?

When your iPhone screen turns off, iOS marks the cellular radio as idle and starts powering it down to save battery. The connected device on the other end of your hotspot loses its signal within seconds. iOS does not expose a setting to keep the radio awake during a hotspot session, which is why every settings-only fix runs out of road eventually.

This is a power management decision Apple made years ago and has never reversed. It applies to every iPhone model from the iPhone 11 onward, every iOS version since iOS 14, and every carrier. If you tether for more than a couple of minutes with a screen-off iPhone, you’ll hit it.

The four settings tweaks people swear by

Each of these helps a tiny bit. None of them keep the hotspot up reliably for a full work session.

1. Set Auto-Lock to Never

Path: Settings → Display & Brightness → Auto-Lock → Never.

This works as long as your screen stays on. iOS does not put the radio to sleep while the display is awake. The cost is your battery dies in around three hours of screen-on time, the panel can burn in if the same image is displayed for hours, and you’ll wear down the screen’s max brightness curve over months.

It’s the most common workaround for short tethering sessions, like a coffee shop pit stop. For a full day on a train or in an airport lounge, it’s painful.

2. Toggle Maximize Compatibility

Path: Settings → Personal Hotspot → Maximize Compatibility.

This switches the hotspot from 5 GHz to 2.4 GHz. It changes the Wi-Fi band, not the radio sleep behavior. If your laptop was struggling to see the 5 GHz hotspot from across the room, turning Maximize Compatibility on can help with reach. If your hotspot was dropping because your iPhone screen turned off, it does nothing.

People often try this, see one stable session right after, and conclude it worked. It didn’t. iOS just hadn’t gotten around to idling the radio yet.

3. Keep the Hotspot section open in foreground

The reasoning here is that if Settings → Personal Hotspot is the active screen, iOS won’t idle the radio.

This is genuinely true. As long as that settings page is in the foreground and the screen is awake, your hotspot stays up. The catch is the same as Auto-Lock to Never: your screen has to stay on and you can’t use your phone for anything else. The moment you switch apps or lock the device, you’re back to square one.

4. Enable “Allow Others to Join” plus Family Sharing

This one circulates as a magic fix in TikTok shorts. It is not a fix. Family Sharing changes who can connect to your hotspot without typing the password. It does not change radio sleep behavior. If your phone idles, your hotspot drops, regardless of who is connected.

The thing none of the threads tell you

Here is what’s actually happening at the system level. When iOS goes idle, it shuts down most hardware modules. The cellular radio is one of them. The thing iOS does keep responsive on a sleeping iPhone is the location services subsystem, because location updates need to happen even when the screen is off.

Specifically, an app with the Location: Always permission gets a small window of background activity. iOS uses that window to refresh location, but the window is wide enough that the cellular radio stays warm at the same time.

This is the only reliable way to keep an iPhone hotspot up with a locked screen. It uses an Apple-sanctioned API, on your own device, with no jailbreaking and no carrier hacks.

We built Hotspot Hero around exactly this mechanism. The app sends very lightweight location updates in the background, just enough to keep the modem from sleeping. No coordinates leave your device. Hotspot Hero never reads your location, stores it, or sends it anywhere. The location signal is used purely as a system wake hint.

What this approach actually does:

• Keeps the cellular radio responsive when the screen is off.
• Lets the connected laptop, console, or tablet stay online for hours instead of seconds.
• Has roughly the battery cost of a navigation app idle in the background.
• Does not change anything about your data plan, throttling, or Wi-Fi compatibility settings.

Real-world test before you install anything

If you want to confirm this is your specific issue before downloading anything, run a 5 minute test:

1. Connect your laptop to the iPhone hotspot.
2. Open Settings → Personal Hotspot on the iPhone and leave that screen visible.
3. Set Auto-Lock to Never temporarily.
4. Watch your laptop’s connection for 5 minutes.

If the connection stays solid in this state, your problem is the radio sleep on lock, full stop. Set Auto-Lock back to whatever it was, and you have a clean reproduction case.

What actually fixes it

Download Hotspot Hero from the App Store.

Setup is three steps:

1. Make sure Personal Hotspot is on in iOS Settings.
2. Open Hotspot Hero, tap Start, grant Location: Always when iOS asks.
3. Lock your phone and use your tethered device normally.

The green status badge shows Active when the wake mechanism is running. When you’re done with the tethering session, tap Stop and the app goes idle.

The threads where this issue gets discussed in detail, if you want to dig into other people’s experiences:

• Apple Discussions: Personal Hotspot disconnects when iPhone is locked
• r/iphone: hotspot drops every few minutes when screen off

You’ll see the same pattern in every thread: people cycle through the four settings tweaks, eventually find a third-party app that uses the location-based wake mechanism, and stop posting in the thread.

Frequently asked questions

Why does iOS shut off the cellular radio when the screen locks?

Apple’s power management is built around the assumption that a phone with a dark screen and no user activity is idle, and idle phones should consume as little power as possible. Cellular radios draw measurable power even when not actively transmitting. Idling the radio extends standby battery life, which matters for the millions of users who never run a hotspot. Apple has not added a hotspot-specific exception to this rule.

Why doesn’t Auto-Lock to Never work for long sessions?

It works in the sense that your hotspot stays up. It fails on battery and on display health. Three hours of continuous screen-on time uses 30 to 40 percent of a typical iPhone’s battery, and modern OLED panels can develop faint burn-in if the same image stays on the screen for many hours over weeks.

Will Hotspot Hero work on iOS 17 and 18?

Yes. The app uses the standard Core Location significant location changes API, which has been stable across every iOS release since iOS 11. Apple has not deprecated or restricted it.

Does this work for tethering to a PS5 or Xbox?

Yes. Console tethering is one of the most common use cases. Console game sessions are exactly the situation where the iPhone sits face-down for hours and the radio sleep kills your match.

Bottom line {.no-faq}

The four settings tweaks you’ve already tried mitigate the symptom. They do not fix the cause. If you want your iPhone hotspot to survive a locked screen, you need the cellular radio to stay responsive in the background, and the only way iOS allows that is through a Location: Always wake hint. Hotspot Hero does that and nothing else.